Oooh, this is a fun thread!
...Although, truth to be told, I'm not very creative when it comes to digital inking :'D I usually stick with whatever default tools the programs I'm using come with, and maybe adjust a few settings here and there.
So I've got:

Clip Studio Paint textured pen. Maximum stabilization (because I simply can NOT do digital lineart without stabilization ò__ò) + angle set on 45%. I started to use this for my Arcana fanarts and I actually love the sketchy feeling of it _ I was really tempted to use it for my own comic when I switched to digital art, but alas, had to give up because smoother lines were easier to color with flood-fill ._.

Clip Studio Paint G-Pen, also set on max stabilization. Another one of my go-to pens for inking
pretty sure the beard was done with one of the watercolor brushes, though.

Procreate technical pen, aka the one I use for my comic
I find it pretty similar to CSP's G-Pen, so of course I love it
Also, for traditional inking:

Staedler pigment liner, with tips ranging from 0.05 to 0.5, depending on what I need. Not... my favorite tool to work with, as it's got a round tip that lets you do basically zero line variation, but it's cheap, it dries fast and works better than any other fineliner I've tried to far, so there's that, I guess XD

Pentel fude pen. Best brush pen ever, 10/10, would totally recommend. I absolutely LOVE working with this thing. It's so pretty and fun and it's great to get a whole bunch of different effects. The only reason why I don't use it for my own comic is that it can be a little unpredictable at times and I prefer to have full control over my lineart when working on panels, but for drawings and illustrations it's my absolute favorite 